US554694A

US554694A - Trolley-support

Info

Publication number: US554694A
Authority: US
Publication date: 1896-02-18
Anticipated expiration: 1913-02-18

Description

(No Model.) T

P.E.HOMER.

TROLLEY SUPPORT.

No. 554,694. Patented Feb. 18, 1896.

AN DREW B.GRAHAM. PHOTO-1mm. WASHINGTON. C

UNITED STATES PATENT OFFICE.

FRANK E. HOMER, OF CLEVELAND, OHIO.

TROLLEY-SUPPORT.

SPECIFICATION forming part of Letters Patent No. 554,694, dated February 18, 1896. Application filed November 30, 1894:. Serial No. 530,499. (No model.)

To aZZ whom it may concern.-

Be it known that I, FRANK E. HOMER, a citizen of the United States, and a resident of Cleveland, countyof Ouyahoga, State of Ohio, I

have invented certain, new and useful Improvements in Trolley-Supports, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in trolley-pole supports; and its objects are to provide a spring-tension suspended trolleypole support in which the degree of the tension will remain nearly uniform at whatever angle the pole may be placed, and which will permit of a wide range of movement. To accomplish these results I employ the removable bearing-plate and tension-springs, with the equalizing-chains connecting with the base of the pole, and the manner of adjustment and arrangementof the various parts, as hereinafter described, shown in the accompanying drawings, and more specifically pointed out in the claim.

In the accompanying drawings, Figure 1 is a perspective VlGWOf the device. longitudinal vertical sectiontaken diagonally from corner to corner. Fig. 3 shows the pole tipped to one side, exhibiting the effect upon the chains. v

. In the figures, 1 is the pole, and 2 a sleevesocket therefor.

3 is a base-frame.

4 are coiled springs adjustably secured by eyebolts 5 and nuts 6 at their outer ends in raised arms 7, supported upon plate 3.

- 8 are chain-loops, secured at either extrem ity to eyes 9 in the upper and lower portions of the sleevesocket and centrally to the inner ends of the coiled springs 4. These springs are shown as placed diagonally at the four corners of the base-plate, and also shorter springs are placed on either side of the pole to increase the stability of the pole and give an adjustable tension for side movements of the pole.

Fig. 2 is a.

It will be seen from Fig. 3 that when the pole is bent toward either side the upper portions of the chain-loops above the point of attachment to the springs on that side will be loosened and the lower portions brought into tension, while upon the other side of the pole the lower portions of the chain will be loosened and the upper portions brought into tension, the effect of which will be to restore the pole instantly to the vertical position as soon as released. The degree of tension also remains practically the same, however far the pole is tipped, but is stronger at the point where the trolley-wheel engages the wire than at any other angle, thus maintaining the pole rigid when in use and giving a constant pressure upon the trolley-wire, while permitting the pole to be tipped below the horizontal when it is desired to insert the trolley.

The advantages of this device are obvious, since there will be no point or angle of support at which the pole will not be rigidly supported, and there will be no loose or uncertain movements of the pole possible, while yielding in every respect and permitting the trolley-wheel to follow the wire on a curve.

The exact number of springs and attachments is immaterial to the invention, since four springs arranged either diagonally or transversely to the base-plate would answer equally well.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In a suspended trolley-pole support, the combination of a sleeve-socket, a base-frame, equalizing chain-loops secured at their extremities to the upper and lower portions of the socket, and coiled springs secured at their outer ends to the baseplate, and at their inner extremities to said chain-loops, substantially as described.

FRANK E. HOMER.